class_docstr: This class tests the ensemble classifier.
class_docstr_tok: ["This","class","tests","the","ensemble","classifier","."]
code: def setUpClass(cls):
      super().setUpClass()
  
      # Use twice the same classifier for unit-testing, in application they would be different
      classifier_1 = get_image_classifier_kr()
      classifier_2 = get_image_classifier_kr()
      cls.ensemble = EnsembleClassifier(
          classifiers=[classifier_1, classifier_2], clip_values=(0, 1)
      )
  
file_path: adversarial-robustness-toolbox/tests/estimators/classification/test_ensemble.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import logging
  import unittest
  import keras.backend
  import numpy
  from art.estimators.classification.ensemble import EnsembleClassifier
  from tests.utils import TestBase, get_image_classifier_kr
label_desc: Use image node_id 1 for calling the TestEnsembleClassifier obj's underlying member method code with example usage: obj.setUpClass(cls) without return types